LANSING, Mich. — Dozens of Michigan State University students gathered on the steps of the State Capitol Thursday afternoon, ignoring the day’s heavy snow to call for more gun laws just over one year after a shooter took the lives of three classmates and injured five more on campus. Organizers said they appreciate the Democratic majority legislature’s swift action with some gun control measures, but there is still work to be done. Several called on Michigan lawmakers to take action. “Don’t wait for another tragedy to make change. Growing up in the lockdown generation — it has taught me that th…